Christopher moegling-



IMPROVEMENT IN GBINDING-MILLS.

"dlgs Stintino nient tu tu ,tigen jirttas v'ntuit mit making pint nt 11p annu.

TO ALL WHOM IT MAY CONCERN:

Be it kno'wn that I, CHRISTOPHER MOEGLIG, of Milwaukee, State of Wisconsin, have invented certain new and useful improvements in Attachments to Grain-Mills for cooling, evaporating, and ventilating purposes; and I do hereby declare the following to be afull and exact description of the same, reference being had to the drawing, that accompany and form a part of these specifications, in which- Figure 1 is a side elevation, with a portion of the curb removed to bring in view the stone and the attachments thereto.

' Figure 2, detached parts, the same being shown in iig. l, arranged upon-the stone.

Figure 3, sectional view cut through the centre of the stone.

Letter A, the upper niillstone; B, the curb; C, the bed-stone; DD', metal bands encirelingthe stone A, shown in iig. 1; E E E, wings or fans attached to the bands D D; F, hopper from which the grain is fed; y, a tube extending from the cover somewhat into the opening of the stone, (see iig. 1;) L, coverabove the upper stone; I, pipe for carrying oit' the air; J, a cap iitted to lthe lower end of the pipe I, and gathers the refuse that may fall in the tube L; k, elbow connecting the interior of the curb with the pipe I'; 'm nz, flanges on the lower end of the elbow or pipe 7c; nu, strips fastened to the top or cover of the curb, and bear upon'the flanges t mm to keep the pipe k in position; O, anopening in the cover 7i leading to the tube 7c; P, a slide used to regula-te the amount of'opening at O; rr, bolts joining the straps D D', s' s', rivets connecting the wings EEE with the straps or bands D D. A

The object of my invention is not merely tohfurnisha cooling device, but, to provide one that shall afford evaporation and ventilation a's well. 'It is well known hy millers that the heat developed byv the'process of grinding sets free much moisture. The current 'ot' air, in ordinary mills, arising from the grinding surfaces brings up much dust which falls upon and renders foul everything in the mill; it is, moreover, very pernicious to the lungs of those employed about the mill. if;

My invention consists in a device that keeps constantly forcing the air, that lies between the curb and the upper stone, out and through a funnel or tube out of' the building; this rwill, as ay matter of course, induce a current down through the feed opening of the stone A and along the grinding surfaces, to keep upthe supply of air that is being .constantly carried oi. The particular parts oi' my device are as follows:

The bands D and D may be of wood, metal, leather, rubber, or any suitable material. These quite encircle the stone, and upon them, arranged as the drawings show, are placed a series of strips or wings of sheet metal, which, in width, are suiicient to very nearly iill the space between thc stone A and the curb B. They do n'ot extend so low as yto the base of the stone A, as may be seen in figg-1. The bands D and D maybe turned around horizontally on the stone A, thc wings E being attached cach end by a single loose rivet only. The effect of moving one of the bands would bc to cause the wings E to incline to the right or left according'to which of the bands was moved, and the direction. The above arrangement provides for gauging the force of the wings E; when they are upright, they willexert their greatest force; when inclined, they will till less space in a vertical direction, and consequently have loss eicct on the air when they rotate with the stone. The object of the' tube g is to prevent air from passing into the space between the curb and the stone over the stone A.

The operation of my device is this:' The stone A, with my attachmentsfis set in motion, and there is always a rush oi' air to the periphery thereof, and the pipe that conducts away the air, being over the outer edge vof the stone or over the space between the stone andeurb, receives this air and conducts it away. This causes the draught of air down'through the opening ofthe stone A,which is always considerable, tobe much increased, and a constant current of air is kept up down through the stone A, along the grinding surfaces of the stones, with the grinding grain, and then oli' through the pipe I, taking away that tine, impalpable dust that is so annoying and destructive, and the dampness that i`s set free by tlicgrindingprocess, and thus keeping the mill clean, the stones cool, sweetening the iiour, and drying it so that it bolts better, and in damp wheat very materially increasing the quantity and producing a complete ventilation, which latter, in grain mills, is of great importance. The cap J can be taken olf as often as may be found necessary, and the refuse that may have gathered there thrown out. l Small pipes leading from the different sets of stones to one large educting pipe would be the f arrangement where several run ot' stones arenised. The slide P is of great use in regulating the flow of air,- a

11111011 'IGl Current being required when rthe grain is damp than when dry. When it is desired to arrange the wings E otherwise than perpendicular, lthe top or upper ends of them should recline backwards from the line of' rotation, whether it be from left to right or the opposite. That-is, if the stones rotatctowards the left, the upper ends of the Wings should reelinc,` as indicated by their position in iig. If the stone rotates to the right, then the position should be changed `tothat indicated by the red lines in fig. 2. This declination from a perpendicular should be less or moreac'cjording as the rotation is slow orrapid. -On a four'foot stone, at two hundred revolutions per minute, this cleclnationshonld be from twelve to iftcen degrees.

I am aware that bands and also wings or fans have'been used in the rotatinfjr stone of'grain mills, also that pipes to conduct; the air to the stones and pipes to conduct the heated air away, and I do not claim any one of those broadly; but what I do cla-iirq'anddesire to secure by Petters Patent, is-

1. The adjustable wings E, in-number more or less, When-used upon the periphery of the rotating stone of a grain or iouring-mill, for the purposes specied. Y i

2. The pile g, the cover h, the elbows c, and the educting pipe I, when provided with the cap J, all combined'and arranged substantially as set forth, and to operate in connection with the wings E for the purposes specied. i

CHRISTOPHER MOEGrLINGrT Witnesses:

D.. C. CULLEY, CRAs. F. WILSON. 

